US20180334064A1 - Method of manufacturing a seat back cushion assembly and cushion assembly made thereby - Google Patents
Method of manufacturing a seat back cushion assembly and cushion assembly made thereby Download PDFInfo
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- US20180334064A1 US20180334064A1 US15/599,008 US201715599008A US2018334064A1 US 20180334064 A1 US20180334064 A1 US 20180334064A1 US 201715599008 A US201715599008 A US 201715599008A US 2018334064 A1 US2018334064 A1 US 2018334064A1
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- United States
- Prior art keywords
- sewing
- backing
- segment
- wadding
- sewing lines
- Prior art date
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Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 120
- 238000009958 sewing Methods 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 22
- 210000000707 wrist Anatomy 0.000 claims abstract description 6
- 239000006260 foam Substances 0.000 claims description 14
- 239000010985 leather Substances 0.000 claims description 10
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/60—Removable protective coverings
- B60N2/6018—Removable protective coverings attachments thereof
- B60N2/609—Removable protective coverings attachments thereof by sewing, stitching or threading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5883—Seat coverings attachments thereof by sewing, stitching or threading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/18—Seat parts having foamed material included in cushioning part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
- B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
Definitions
- This disclosure relates to a method of manufacturing a seat back cushion assembly and a cushion assembly made thereby.
- Vehicle seat backs and related cushions are made from numerous materials. They are configured in various shapes and sizes to accommodate the specific requirements of a customer or vehicle in which they are deployed.
- One material installed in passenger and commercial vehicles is real or synthetic leather.
- Seat cushions may include a top surface of leather and an underlayment of a stiff backing material attached to the backside of the leather, with foam padding inserted between the top surface and the underlayment.
- the stiff backing material may facilitate manufacturing and assembly processes, using such a material on a vehicle seat back has certain drawbacks.
- the stiff backing material has different stretch characteristics from the leather upper material. This can lead to crease lines in the resulting seat back cushion surface.
- seat backs use a thick seat trim cover panel made of multiple layers—e.g., an upper material, a foam wadding material, and a backing material. Such a seat back may not lie flat when attached to a seat frame.
- the process of attaching the backing material to the leather material with a foam padding interposed may result in a seat back cushion having a rear surface that undulates.
- a seat back cushion may be difficult to attach to a seat structure is that many cushions for example are manufactured with a generally rectangular perimeter. This facilitates the manufacturing processes by presenting material pieces that can readily be cut and assembled. For instance, if the entire seat cushion has a generally rectangular perimeter, the piece or pieces of foam padding can also have a generally rectangular shape. This makes it easier to insert the foam padding into pre-sewn pockets formed by the leather and the stiff backing material. Despite the ease of manufacturing, a rectangular shape may be suboptimal from a fit and finish perspective.
- the seat back cushion can be considered to have longitudinally running side edges and laterally oriented top and bottom edges.
- the method includes these steps, not necessarily in the order presented:
- a wrist watch-like pattern is formed on the seat back.
- FIG. 1 shows a vehicle seat cushion assembly including a seat back cushion and a seat cushion in accordance with an embodiment of the present invention
- FIG. 2 shows an elastic backing material used with the seat back cushion shown in FIG. 1 ;
- FIGS. 3-14 depict various steps in a representative manufacturing process
- FIG. 15 is a frontal view of an illustrative seat back cushion thus manufactured with an appearance that resembles a wrist watch strap
- FIG. 16 is a representative cross-section taken along the line A-A of FIG. 15 .
- FIG. 1 shows a vehicle seat assembly 10 including a seat back cushion and a seat cushion in accordance with an embodiment of the invention.
- the disclosed method can be deployed in the making of a seat back cushion or a seat cushion or both.
- this disclosure focuses on a method of making a seat back cushion.
- the term “seat back cushion” includes a seat back or a seat base or both a seat back and seat base by which a seat occupant may supported.
- the vehicle seat assembly includes a seat back cushion 10 with an outer material 12 , which may for example be leather that may be used as one or more layers, only some of which may be leather.
- the outer material 12 defines an outer seat back surface 13 ( FIG. 1 ), which is a surface contacting an occupant of the seat.
- the outer material 12 also includes an underside 15 , which is not visible in FIG. 1 .
- first and second sewing lines 14 , 16 Disposed on the outer surface 13 of the cushion assembly 10 are first and second sewing lines 14 , 16 , which are preferably disposed generally longitudinally and approximately parallel to each other.
- the sewing lines 14 , 16 secure the outer material 12 to a backing material 18 ( FIGS. 2-5 ).
- a hoop can be adhered or added to the elastic tulle. The hoop helps maintain and provide adhesion to a foam pad.
- backing material includes for example a woven or non-woven or knitted or elastic tulle that may be light in weight and possess a stiffness characteristic for support.
- the seat back cushion can be considered as having two longitudinal edges, a top edge and a bottom edge.
- a “longitudinal” axis (A-A, FIG. 4 ) can be imagined as an axis of symmetry to turn generally in parallel with the side edges.
- a lateral axis (not expressly depicted) can be imagined to extend in parallel with the top and bottom edges orthogonally to the longitudinal axis (A-A).
- an outer perimeter of the outer material 12 is generally defined by side edges and a top and bottom edge segments 40 , 42 , 44 , 46 ( FIG. 2 ).
- an outer perimeter of a seat back cushion 10 in accordance with embodiments of the present disclosure may have one or more curved segments, such as the segments 48 - 50 ( FIG. 2 ). Other embodiments may have a curved perimeter with few or no linear segments.
- FIG. 2 shows the backing material 18 in more detail.
- the backing material 18 has a perimeter that is generally coextensive with the perimeter of the outer material 12 , and is also generally defined by corresponding linear edge segments.
- the backing material 18 has a stretchability that is greater than the stretchability of the outer material 12 . This helps to overcome problems associated with seat cushion assemblies having a stiff backing material, which tends to pull on the side or bolster cushions of the seat assembly when an occupant is seated.
- the backing material deforms at least as much or more than the outer material 12 . This tends to produce to a better fit and greater comfort for the vehicle occupant.
- the material 18 may be, for example, a woven tulle or knit tulle or other similarly elastic material.
- FIG. 2 Also shown in FIG. 2 are markings 56 , 58 to guide the first and second sewing lines 14 , 16 (see also FIGS. 2 and 4 ).
- the line 56 corresponds to the location of the first sewing line 14
- the second line 58 corresponds to the location of the second sewing line 16 .
- FIGS. 3-14 typify representative steps in the assembly process that are practiced in making the seat back cushion 10 . It is to be appreciated that the steps need not be practiced in the order depicted or described.
- the outer material 12 is placed over the backing material 18 such that location lines 56 ′ 58 ′ on the material 12 are aligned with the location lines 56 , 58 (not visible in FIG. 3 ) on the backing material 18 .
- the first sewing line 14 is laid, thereby securing the outer and backing materials 12 , 18 to each other along a longitudinally oriented seam 14 .
- a wadding material 60 FIG. 4
- a second sewing line 16 ( FIG. 5 ) is laid.
- the interior space 59 encapsulates the wadding material 60 in a longitudinally extending central portion of the seat back cushion 10 .
- the assembly method continues ( FIG. 6 ) with a step of making zig-zag, tiered sewing lines 32 - 38 between the first 14 and second 16 sewing lines.
- the tiered sewing lines 32 - 38 commence at one edge, such as a top edge 44 and run centrally as shown in a zig-zag fashion to the opposite edge, such as the bottom edge 40 , or vice-versa. In this way, a central portion of the wadding material 60 is secured in a decorative and functional manner.
- the zig-zag or tiered longitudinal sewing lines 32 - 58 include a lateral segment and a longitudinal segment.
- the latitudinal segment has a left end and a right end, and the longitudinal segment has a top end and a bottom end. The right end is serially connected to the top end and the bottom end is connected to the right end of a next segment and so on. It will be appreciated that the longitudinal or the lateral segments of the tiered sensing lines 32 - 38 may be invisible to the ordinary observer of a finished seat.
- Assembly of the vehicle seat back cushion 10 continues ( FIG. 7 ) when another volume of wadding material 62 is placed on the left hand side of the sewing line 14 .
- More wadding material 64 is placed on the right hand side of sewing line 16 ( FIG. 8 ).
- this wadding material may include at least one of a urethane foam or a bio-based foam, such as foam created from a soy polyol, although other types of wadding material may be used as desired.
- One or more peripheral seams 90 secure the pad 64 at a side edge of the backing material 18 ( FIG. 9 ).
- a glazing can be applied to an underside of the outer material ( FIG. 9 ).
- a plurality of laterally oriented seams 82 - 88 are sewn between the side edges 42 , 46 of the seat back cushion 10 .
- the sewing lines 82 - 88 may optionally be oriented so that they run generally horizontally.
- the laterally oriented sewing lines 82 - 88 are generally perpendicular to the first and second sewing lines 14 , 16 .
- the sewing lines 82 - 88 include a left stitch segment that runs across a left portion of the outer material 12 , a middle segment that runs across a center portion of the outer material 12 and a right segment that runs across a right portion of the outer material 12 .
- “generally” means within about 30 degrees of a horizontal axis.
- Final steps involve sewing the outer 12 and backing materials 18 together using one or more additional sewing lines 90 - 92 respectively disposed adjacent edges 40 , 44 of the wadding material 60 proximate peripheral edges of the seat back cushion 10 .
- the outer 12 and backing materials 18 have generally parallel longitudinal perimeters 42 , 46 joined by generally parallel top and bottom edges 40 , 44 that are joined by rounded corners 48 , 50 ( FIG. 15 ).
- the wadding material 60 such as a foam pad, polyurethane (PU), polyethersulfone (PES), polyethylene terephthalate (PET) includes foam having a thickness in an un-deflected state of about 15 mm and a density of about 33 Kg/cubic meter.
- FIG. 16 is a representative cross-sectional view of one embodiment of a seat cushion assembly made by following the steps described earlier.
- the folded configuration of, for example, a leather seating surface that adds volume and cushioning to the seat.
- vehicle seat assembly 12 outer material (e.g., leather) 14 first sewing line 15 underside of 12 16 second sewing line 18 backing material (e.g., woven tulle or knit tulle or other elastic material) 32-38 longitudinally oriented sewing lines to secure 12 to 18 40-46 linear edge segments of 12 48-50 curved segments 56 location line of 14 58 location line of 16 59 interior space between 12, 18, 14 & 16 60 wadding material into 59 62-64 wadding material between 12 & 18 on left and right sides 82-88 laterally oriented sewing lines affixing 12 & 18 90-92 peripheral sewing lines affixing 12 & 18
Abstract
Description
- This disclosure relates to a method of manufacturing a seat back cushion assembly and a cushion assembly made thereby.
- Vehicle seat backs and related cushions are made from numerous materials. They are configured in various shapes and sizes to accommodate the specific requirements of a customer or vehicle in which they are deployed. One material installed in passenger and commercial vehicles is real or synthetic leather. Seat cushions may include a top surface of leather and an underlayment of a stiff backing material attached to the backside of the leather, with foam padding inserted between the top surface and the underlayment.
- Although the stiff backing material may facilitate manufacturing and assembly processes, using such a material on a vehicle seat back has certain drawbacks. For example, the stiff backing material has different stretch characteristics from the leather upper material. This can lead to crease lines in the resulting seat back cushion surface.
- One concern is that many seat backs use a thick seat trim cover panel made of multiple layers—e.g., an upper material, a foam wadding material, and a backing material. Such a seat back may not lie flat when attached to a seat frame. The process of attaching the backing material to the leather material with a foam padding interposed may result in a seat back cushion having a rear surface that undulates.
- Another reason that a seat back cushion may be difficult to attach to a seat structure is that many cushions for example are manufactured with a generally rectangular perimeter. This facilitates the manufacturing processes by presenting material pieces that can readily be cut and assembled. For instance, if the entire seat cushion has a generally rectangular perimeter, the piece or pieces of foam padding can also have a generally rectangular shape. This makes it easier to insert the foam padding into pre-sewn pockets formed by the leather and the stiff backing material. Despite the ease of manufacturing, a rectangular shape may be suboptimal from a fit and finish perspective.
- It would therefore be desirable to provide a method of manufacturing a seat back cushion and assembly that overcome some or all of these problems.
- Among the art considered in preparing this patent application are U.S. Pat. Nos. 3,222,697; 4,754,720; 7,823,980; 8,584,333; 8,967,712; 2013/0140867; WO 2012/028218; DE 10 2010 035 845; EP 2 611 653;
FR 1 456 564; and GB 2439922. - Disclosed is a method for manufacturing a seat back cushion or seat cushion (collectively “seat back cushion”) and an assembly thus manufactured. As a frame of reference, the seat back cushion can be considered to have longitudinally running side edges and laterally oriented top and bottom edges. The method includes these steps, not necessarily in the order presented:
- providing an outer material to define a surface that faces a seat occupant;
- sewing a backing material to the outer material (or vice-versa) using a first longitudinally oriented sewing line;
- placing a wadding or padding foam or hacoflex material adjacent to the first longitudinally oriented sewing line;
- sewing the backing material to the outer material (or vice-versa) using a second longitudinally oriented sewing line so that the wadding material is secured between the first and second sewing lines;
- making a longitudinally running tiered or zig-zag sewing line between the first and second sewing lines from the top to the bottom edges (or vice-versa);
- placing a wadding material between the outer and backing materials and between the first sewing line and an edge of the seat cushion and securing the wadding material by sewing a seam along a side edge;
- placing a wadding material between the outer and backing materials and between the second sewing line and an opposite edge of the seat cushion and sewing a seam along the other side edge; and
- making a plurality of laterally oriented sewing lines between the side edges of the seat back cushion.
- By practicing these steps and their variants, a wrist watch-like pattern is formed on the seat back.
-
FIG. 1 shows a vehicle seat cushion assembly including a seat back cushion and a seat cushion in accordance with an embodiment of the present invention; -
FIG. 2 shows an elastic backing material used with the seat back cushion shown inFIG. 1 ; -
FIGS. 3-14 depict various steps in a representative manufacturing process; -
FIG. 15 is a frontal view of an illustrative seat back cushion thus manufactured with an appearance that resembles a wrist watch strap; and -
FIG. 16 is a representative cross-section taken along the line A-A ofFIG. 15 . - As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.
-
FIG. 1 shows avehicle seat assembly 10 including a seat back cushion and a seat cushion in accordance with an embodiment of the invention. The disclosed method can be deployed in the making of a seat back cushion or a seat cushion or both. For simplicity this disclosure focuses on a method of making a seat back cushion. Thus it is to be understood that as used herein the term “seat back cushion” includes a seat back or a seat base or both a seat back and seat base by which a seat occupant may supported. - The vehicle seat assembly includes a
seat back cushion 10 with anouter material 12, which may for example be leather that may be used as one or more layers, only some of which may be leather. Theouter material 12 defines an outer seat back surface 13 (FIG. 1 ), which is a surface contacting an occupant of the seat. - The
outer material 12 also includes anunderside 15, which is not visible inFIG. 1 . Disposed on the outer surface 13 of thecushion assembly 10 are first andsecond sewing lines sewing lines outer material 12 to a backing material 18 (FIGS. 2-5 ). Optionally, a hoop can be adhered or added to the elastic tulle. The hoop helps maintain and provide adhesion to a foam pad. - As used herein the term “backing material” includes for example a woven or non-woven or knitted or elastic tulle that may be light in weight and possess a stiffness characteristic for support.
- For ease of reference, the seat back cushion can be considered as having two longitudinal edges, a top edge and a bottom edge. A “longitudinal” axis (A-A,
FIG. 4 ) can be imagined as an axis of symmetry to turn generally in parallel with the side edges. A lateral axis (not expressly depicted) can be imagined to extend in parallel with the top and bottom edges orthogonally to the longitudinal axis (A-A). - After being sewn in a manner to be described, sewing lines or seams 20-38 (
FIGS. 3-14 ) attach theouter material 12 to thebacking material 18 while securing a pad or wadding material 60 (FIGS. 4, 7 & 8 ) therebetween. An outer perimeter of theouter material 12 is generally defined by side edges and a top andbottom edge segments FIG. 2 ). In addition, an outer perimeter of aseat back cushion 10 in accordance with embodiments of the present disclosure may have one or more curved segments, such as the segments 48-50 (FIG. 2 ). Other embodiments may have a curved perimeter with few or no linear segments. -
FIG. 2 shows thebacking material 18 in more detail. In particular, thebacking material 18 has a perimeter that is generally coextensive with the perimeter of theouter material 12, and is also generally defined by corresponding linear edge segments. In at least some embodiments, thebacking material 18 has a stretchability that is greater than the stretchability of theouter material 12. This helps to overcome problems associated with seat cushion assemblies having a stiff backing material, which tends to pull on the side or bolster cushions of the seat assembly when an occupant is seated. Thus, in embodiments having the lower stiffness backing material, such as thematerial 18, the backing material deforms at least as much or more than theouter material 12. This tends to produce to a better fit and greater comfort for the vehicle occupant. Thematerial 18 may be, for example, a woven tulle or knit tulle or other similarly elastic material. - Also shown in
FIG. 2 aremarkings second sewing lines 14, 16 (see alsoFIGS. 2 and 4 ). Theline 56 corresponds to the location of thefirst sewing line 14, while thesecond line 58 corresponds to the location of thesecond sewing line 16. -
FIGS. 3-14 typify representative steps in the assembly process that are practiced in making the seat backcushion 10. It is to be appreciated that the steps need not be practiced in the order depicted or described. - As shown in
FIG. 3 , theouter material 12 is placed over thebacking material 18 such thatlocation lines 56′ 58′ on thematerial 12 are aligned with thelocation lines 56, 58 (not visible inFIG. 3 ) on thebacking material 18. Then, as shown inFIGS. 3-4 , thefirst sewing line 14 is laid, thereby securing the outer andbacking materials seam 14. Next, a wadding material 60 (FIG. 4 ) is juxtaposed with thefirst sewing line 14. Then a second sewing line 16 (FIG. 5 ) is laid. Sewing the two pieces ofmaterial second sewing lines interior space 59 between the outer andbacking materials second sewing lines interior space 59 encapsulates thewadding material 60 in a longitudinally extending central portion of the seat backcushion 10. - In one variant, the assembly method continues (
FIG. 6 ) with a step of making zig-zag, tiered sewing lines 32-38 between the first 14 and second 16 sewing lines. The tiered sewing lines 32-38 commence at one edge, such as atop edge 44 and run centrally as shown in a zig-zag fashion to the opposite edge, such as thebottom edge 40, or vice-versa. In this way, a central portion of thewadding material 60 is secured in a decorative and functional manner. In more illustrative detail, the zig-zag or tiered longitudinal sewing lines 32-58 include a lateral segment and a longitudinal segment. The latitudinal segment has a left end and a right end, and the longitudinal segment has a top end and a bottom end. The right end is serially connected to the top end and the bottom end is connected to the right end of a next segment and so on. It will be appreciated that the longitudinal or the lateral segments of the tiered sensing lines 32-38 may be invisible to the ordinary observer of a finished seat. - Assembly of the vehicle seat back
cushion 10 continues (FIG. 7 ) when another volume ofwadding material 62 is placed on the left hand side of thesewing line 14.More wadding material 64 is placed on the right hand side of sewing line 16 (FIG. 8 ). As with the other wadding material described herein, this wadding material may include at least one of a urethane foam or a bio-based foam, such as foam created from a soy polyol, although other types of wadding material may be used as desired. One or moreperipheral seams 90 secure thepad 64 at a side edge of the backing material 18 (FIG. 9 ). - If desired, a glazing can be applied to an underside of the outer material (
FIG. 9 ). - As shown in
FIGS. 10-13 , a plurality of laterally oriented seams 82-88 are sewn between the side edges 42, 46 of the seat backcushion 10. Although depicted as running in an inclined manner in the off-center region, the sewing lines 82-88 may optionally be oriented so that they run generally horizontally. It will be appreciated that the laterally oriented sewing lines 82-88 are generally perpendicular to the first andsecond sewing lines outer material 12, a middle segment that runs across a center portion of theouter material 12 and a right segment that runs across a right portion of theouter material 12. In this context “generally” means within about 30 degrees of a horizontal axis. - Final steps (
FIG. 14 ) involve sewing the outer 12 andbacking materials 18 together using one or more additional sewing lines 90-92 respectively disposedadjacent edges wadding material 60 proximate peripheral edges of the seat backcushion 10. - In some applications, the outer 12 and
backing materials 18 have generally parallellongitudinal perimeters bottom edges rounded corners 48, 50 (FIG. 15 ). - Optionally, the
wadding material 60 such as a foam pad, polyurethane (PU), polyethersulfone (PES), polyethylene terephthalate (PET) includes foam having a thickness in an un-deflected state of about 15 mm and a density of about 33 Kg/cubic meter. - Together the
outer material 12 with the laterally oriented 82-88 and longitudinally oriented 32-38 sewing lines present an appearance that is akin to a wrist watch strap. -
FIG. 16 is a representative cross-sectional view of one embodiment of a seat cushion assembly made by following the steps described earlier. Of note is the folded configuration of, for example, a leather seating surface that adds volume and cushioning to the seat. - It will be appreciated that the sewing process disclosed herein is offered as being illustrative. Differently sized steps or sewing orientation are also contemplated.
-
Reference Number Feature Name 10 vehicle seat assembly 12 outer material (e.g., leather) 14 first sewing line 15 underside of 12 16 second sewing line 18 backing material (e.g., woven tulle or knit tulle or other elastic material) 32-38 longitudinally oriented sewing lines to secure 12 to 18 40-46 linear edge segments of 12 48-50 curved segments 56 location line of 14 58 location line of 16 59 interior space between 12, 18, 14 & 16 60 wadding material into 59 62-64 wadding material between 12 & 18 on left and right sides 82-88 laterally oriented sewing lines affixing 12 & 18 90-92 peripheral sewing lines affixing 12 & 18 - While exemplary embodiments are described above, it is not intended that these embodiments describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention. Additionally, the features of various implementing embodiments may be combined to form further embodiments of the invention.
Claims (15)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US15/599,008 US10576853B2 (en) | 2017-05-18 | 2017-05-18 | Method of manufacturing a seat back cushion assembly |
US15/971,656 US10604045B2 (en) | 2017-05-18 | 2018-05-04 | Method of manufacturing a seat back and cushion assembly |
DE102018207669.3A DE102018207669B4 (en) | 2017-05-18 | 2018-05-16 | Method of making a seat back and cushion assembly and assembly made thereby |
CN201810475340.8A CN108944592B (en) | 2017-05-18 | 2018-05-17 | Method of manufacturing a seat back and cushion assembly and assembly manufactured thereby |
Applications Claiming Priority (1)
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US15/599,008 US10576853B2 (en) | 2017-05-18 | 2017-05-18 | Method of manufacturing a seat back cushion assembly |
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US15/971,656 Continuation-In-Part US10604045B2 (en) | 2017-05-18 | 2018-05-04 | Method of manufacturing a seat back and cushion assembly |
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US20180334064A1 true US20180334064A1 (en) | 2018-11-22 |
US10576853B2 US10576853B2 (en) | 2020-03-03 |
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US15/599,008 Active 2037-12-31 US10576853B2 (en) | 2017-05-18 | 2017-05-18 | Method of manufacturing a seat back cushion assembly |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10576853B2 (en) * | 2017-05-18 | 2020-03-03 | Lear Corporation | Method of manufacturing a seat back cushion assembly |
WO2020136100A1 (en) * | 2018-12-24 | 2020-07-02 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg | Vehicle subassembly having a planar component and production method |
US20230182629A1 (en) * | 2021-12-14 | 2023-06-15 | Lear Corporation | Seat assembly trim panel |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3081398B1 (en) * | 2018-05-23 | 2020-06-19 | Faurecia Sieges D'automobile | HAIRDRESSING SYSTEM FOR MOTOR VEHICLE SEAT MEMBER AND METHOD FOR MANUFACTURING SUCH A HAIRDRESSING SYSTEM |
Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2274929A (en) * | 1939-03-27 | 1942-03-03 | Nat Automotive Fibres Inc | Upholstery |
US3222697A (en) * | 1955-07-05 | 1965-12-14 | Mobay Chemical Corp | Profiled polyurethane foam articles of manufacture |
US3270394A (en) * | 1964-03-19 | 1966-09-06 | Marsh Armfield | Method of manufacturing cushions |
US3519308A (en) * | 1968-05-14 | 1970-07-07 | John W Kasman | Seat conversion kit |
US4040881A (en) * | 1976-03-22 | 1977-08-09 | General Engineering & Manufacturing Corporation | Method of forming tufted cushion elements |
US4663211A (en) * | 1984-09-29 | 1987-05-05 | Tachikawa Spring Co., Ltd. | Trim cover assembly for a vehicle seat |
US4711495A (en) * | 1984-12-14 | 1987-12-08 | Dubarry Furniture Of Canada Limited | Upholstered furniture |
US4754720A (en) * | 1986-12-03 | 1988-07-05 | Pfaff Industriemaschinenen Gmbh | Process and device for fabricating seat covers |
US5193474A (en) * | 1991-02-21 | 1993-03-16 | Tachi-S Co., Ltd. | Method of feeding a unitary sheet of trim cover assembly to multiple-needle sewing machine for creating plural stitches thereon |
US5359950A (en) * | 1993-10-26 | 1994-11-01 | Patricia Schellas | Tear-resistant seams including multiple and overlapping stitches for clothing |
US5388891A (en) * | 1991-09-09 | 1995-02-14 | Nissan Motor Co., Ltd. | Cushion structure of automotive seat |
US5501165A (en) * | 1994-03-10 | 1996-03-26 | Tachi-S Co., Ltd. | Method for forming decorative creases in a trim cover assembly |
US5669670A (en) * | 1996-03-21 | 1997-09-23 | Tachi-S Co., Ltd. | Leather trim cover assembly for vehicle seat and method for forming the same |
US6443525B1 (en) * | 2000-05-22 | 2002-09-03 | Johnson Controls Technology Company | Vehicle seat assembly and fastening device |
US20040195227A1 (en) * | 2003-01-15 | 2004-10-07 | Ki-Woong Park | Heated vehicle cushion |
US20050081770A1 (en) * | 2003-10-15 | 2005-04-21 | Kimberly Murley | Offset seam sewing process |
US7448643B2 (en) * | 2003-07-28 | 2008-11-11 | Johnson Controls Gmbh | Method and apparatus for textile sheet material |
US7823980B2 (en) * | 2007-12-07 | 2010-11-02 | Toyota Boshoku Kabushiki Kaisha | Pieces for skin members of vehicular seats and methods of manufacturing the same |
US7879424B2 (en) * | 2003-10-27 | 2011-02-01 | Johnson Controls Technology Company | Method for making a vehicle panel |
US20110037243A1 (en) * | 2008-03-25 | 2011-02-17 | Johnson Controls Technology Company | Vehicular trim applications using film adhesive in lieu of stitching |
US20110049949A1 (en) * | 2009-09-02 | 2011-03-03 | Basmaji Joseph F | Durable Flame Resistant Seat Cover |
US20110278902A1 (en) * | 2010-05-17 | 2011-11-17 | Lear Corporation | Vehicle seat assembly with interlocking layered seating system |
US20120001464A1 (en) * | 2009-03-18 | 2012-01-05 | Hwa Cheng Teoh | Vehicle seat cover |
US20130140867A1 (en) * | 2010-08-30 | 2013-06-06 | Johnson Controls Technology Company | Vehicle seat cover |
US20130187432A1 (en) * | 2012-01-25 | 2013-07-25 | Lear Corporation | Seat cushion assembly and method of manufacture |
US20130320721A1 (en) * | 2011-02-17 | 2013-12-05 | Giovanni Cortellazzi | Seat-cover and/or back-cover strips for seats of motor vehicles |
US20140137610A1 (en) * | 2012-11-21 | 2014-05-22 | Lear Corporation | Method of processing leather material |
US8967712B2 (en) * | 2008-10-29 | 2015-03-03 | Toyota Boshoku Kabushiki Kaisha | Skin for seat back of vehicle seat |
US20160339819A1 (en) * | 2014-02-03 | 2016-11-24 | Tachi-S Co., Ltd. | Surface structure of wadded seat and method of manufacturing surface structure of wadded seat |
US20180334066A1 (en) * | 2017-05-18 | 2018-11-22 | Lear Corporation | Method of manufacturing a seat back and cushion assembly and the assembly made thereby |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1901123U (en) | 1964-07-04 | 1964-09-24 | Bremshey & Co | ADJUSTABLE BACKREST SEAT, ESPECIALLY FOR VEHICLES. |
US6886479B1 (en) * | 2003-11-14 | 2005-05-03 | Tachi-S Co., Ltd. | Sewing method to form a trim cover assembly and automotive seat using the trim cover assembly |
US7278363B2 (en) * | 2005-07-28 | 2007-10-09 | Irvin Automotive Products, Inc. | Non-laminate seam |
JP2009055928A (en) * | 2005-12-19 | 2009-03-19 | T S Tec Kk | Skin-integrated foam-molded seat for vehicle |
DE102006023904A1 (en) | 2006-05-19 | 2007-11-22 | Faurecia Autositze Gmbh | Vehicle seat or seat cover has cover material folded at fold point, stitched into groove with upholstery sub-layer by seam covered by cover material, has marking near seam or at fold point |
FR2971977B1 (en) * | 2011-02-28 | 2013-02-15 | Peugeot Citroen Automobiles Sa | METHOD FOR MAKING A 3D EFFECT SEAT COMPLEX AND ASSOCIATED SEAT |
US10576853B2 (en) * | 2017-05-18 | 2020-03-03 | Lear Corporation | Method of manufacturing a seat back cushion assembly |
-
2017
- 2017-05-18 US US15/599,008 patent/US10576853B2/en active Active
-
2018
- 2018-05-16 DE DE102018207669.3A patent/DE102018207669B4/en active Active
- 2018-05-17 CN CN201810475340.8A patent/CN108944592B/en active Active
Patent Citations (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2274929A (en) * | 1939-03-27 | 1942-03-03 | Nat Automotive Fibres Inc | Upholstery |
US3222697A (en) * | 1955-07-05 | 1965-12-14 | Mobay Chemical Corp | Profiled polyurethane foam articles of manufacture |
US3270394A (en) * | 1964-03-19 | 1966-09-06 | Marsh Armfield | Method of manufacturing cushions |
US3519308A (en) * | 1968-05-14 | 1970-07-07 | John W Kasman | Seat conversion kit |
US4040881A (en) * | 1976-03-22 | 1977-08-09 | General Engineering & Manufacturing Corporation | Method of forming tufted cushion elements |
US4663211A (en) * | 1984-09-29 | 1987-05-05 | Tachikawa Spring Co., Ltd. | Trim cover assembly for a vehicle seat |
US4711495A (en) * | 1984-12-14 | 1987-12-08 | Dubarry Furniture Of Canada Limited | Upholstered furniture |
US4754720A (en) * | 1986-12-03 | 1988-07-05 | Pfaff Industriemaschinenen Gmbh | Process and device for fabricating seat covers |
US5193474A (en) * | 1991-02-21 | 1993-03-16 | Tachi-S Co., Ltd. | Method of feeding a unitary sheet of trim cover assembly to multiple-needle sewing machine for creating plural stitches thereon |
US5388891A (en) * | 1991-09-09 | 1995-02-14 | Nissan Motor Co., Ltd. | Cushion structure of automotive seat |
US5359950A (en) * | 1993-10-26 | 1994-11-01 | Patricia Schellas | Tear-resistant seams including multiple and overlapping stitches for clothing |
US5501165A (en) * | 1994-03-10 | 1996-03-26 | Tachi-S Co., Ltd. | Method for forming decorative creases in a trim cover assembly |
US5669670A (en) * | 1996-03-21 | 1997-09-23 | Tachi-S Co., Ltd. | Leather trim cover assembly for vehicle seat and method for forming the same |
US6443525B1 (en) * | 2000-05-22 | 2002-09-03 | Johnson Controls Technology Company | Vehicle seat assembly and fastening device |
US20040195227A1 (en) * | 2003-01-15 | 2004-10-07 | Ki-Woong Park | Heated vehicle cushion |
US7448643B2 (en) * | 2003-07-28 | 2008-11-11 | Johnson Controls Gmbh | Method and apparatus for textile sheet material |
US20050081770A1 (en) * | 2003-10-15 | 2005-04-21 | Kimberly Murley | Offset seam sewing process |
US7879424B2 (en) * | 2003-10-27 | 2011-02-01 | Johnson Controls Technology Company | Method for making a vehicle panel |
US7823980B2 (en) * | 2007-12-07 | 2010-11-02 | Toyota Boshoku Kabushiki Kaisha | Pieces for skin members of vehicular seats and methods of manufacturing the same |
US20110037243A1 (en) * | 2008-03-25 | 2011-02-17 | Johnson Controls Technology Company | Vehicular trim applications using film adhesive in lieu of stitching |
US8967712B2 (en) * | 2008-10-29 | 2015-03-03 | Toyota Boshoku Kabushiki Kaisha | Skin for seat back of vehicle seat |
US20120001464A1 (en) * | 2009-03-18 | 2012-01-05 | Hwa Cheng Teoh | Vehicle seat cover |
US20110049949A1 (en) * | 2009-09-02 | 2011-03-03 | Basmaji Joseph F | Durable Flame Resistant Seat Cover |
US20110278902A1 (en) * | 2010-05-17 | 2011-11-17 | Lear Corporation | Vehicle seat assembly with interlocking layered seating system |
US20130140867A1 (en) * | 2010-08-30 | 2013-06-06 | Johnson Controls Technology Company | Vehicle seat cover |
US20130320721A1 (en) * | 2011-02-17 | 2013-12-05 | Giovanni Cortellazzi | Seat-cover and/or back-cover strips for seats of motor vehicles |
US20130187432A1 (en) * | 2012-01-25 | 2013-07-25 | Lear Corporation | Seat cushion assembly and method of manufacture |
US20140137610A1 (en) * | 2012-11-21 | 2014-05-22 | Lear Corporation | Method of processing leather material |
US20160339819A1 (en) * | 2014-02-03 | 2016-11-24 | Tachi-S Co., Ltd. | Surface structure of wadded seat and method of manufacturing surface structure of wadded seat |
US20180334066A1 (en) * | 2017-05-18 | 2018-11-22 | Lear Corporation | Method of manufacturing a seat back and cushion assembly and the assembly made thereby |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10576853B2 (en) * | 2017-05-18 | 2020-03-03 | Lear Corporation | Method of manufacturing a seat back cushion assembly |
WO2020136100A1 (en) * | 2018-12-24 | 2020-07-02 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg | Vehicle subassembly having a planar component and production method |
US20230182629A1 (en) * | 2021-12-14 | 2023-06-15 | Lear Corporation | Seat assembly trim panel |
US11752909B2 (en) * | 2021-12-14 | 2023-09-12 | Lear Corporation | Seat assembly trim panel |
Also Published As
Publication number | Publication date |
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DE102018207669B4 (en) | 2024-02-01 |
CN108944592B (en) | 2021-07-16 |
US10576853B2 (en) | 2020-03-03 |
DE102018207669A1 (en) | 2018-11-22 |
CN108944592A (en) | 2018-12-07 |
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